Quill or bobbin



(No Model.) I

. G. A. UARLSTROEM.

QUILL OR BOBBIN.

No. 431,800. Patented July 8, 1890.

FIE Lle e r} /a/ a 0g 2; I 5" J 1 a? WITNESSES UNITED STATES PATENT OFFICE.

CARL AUGUST OARLSTROEM, OF BROOKLYN, NEW YORK.

QUILL oR BOBBIN.

SPECIFICATION forming part of Letters Iatent No. 431,800, dated July 8, 1890.

Application filed February 14, 1890- Serial No. 340,387. (No model.)

To all whom it may concern.

Be it known that I, OARL AUGUST CARL- STROEM, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Quills or Bobbins, of which the following is a specification.

My invention consists of an improved construction of quills or spools for shuttles, such as are used for weaving silk ribbons and the like, whereby I am enabled to provide metallic quills of equally light weight and cheap cost as the wooden quills or spools now used, with the advantage of the non-hygroscopic quality of the metal and greater durability, as hereinafter fully described, reference being made to the accompanying drawings, in which Figure 1 isa side elevation of myimproved quill or spool complete. Fig. 2 is a similar View of the same with the parts nearly assembled preparatory to fastening them together. Fig. 3 is a transverse section of the complete quill on line m, Fig. 1. Fig. 4 is an elevation of one of thedisks of which the heads are made. Fig. 5 is an elevation of the other or outside disk; and Fig. 6 is an elevation of one of the heads, showing the in side view.

The wood quills or spools commonly used are very apt to spring and curve in the shaft through swelling and shrinking by hygroscopic variations of condition, which prevents them from working uniformly both 'in the spoofing-machine and the shuttle, and the heads split off by the same influences and by careless handling to such extent that a large percentage goes to waste. Wood has up to this time been found the best material for these articles, mainly because the requisite lightness is attainable with the comparatively large shaft that is requisite for the length of radius necessary for the unwinding of the smaller coils Without too much tension, besides being cheaper to'make than such as have heretofore been made of other material. By my following-described improvement in construction I overcome the greater expense of metallic quills and make them equally as light with the required large size of the shaft.

To construct the heads, I take one flat disk a, of thin sheet metal, for the inner side having a central hole I) and an annular recess a surrounding said hole on the inside of the size of the end of the shaft d, and having the outwardly-projectingperipheral flange e, and to this disk I add another concavo-convex disk f for the outer side of the head, said disk also having a central hole and one or more holes g for the spool-carrying stud of the spoofing-machine, and place it with the edge of the concave side against the outside of disk a within flange e and spin or stamp said flange down over said edge of disk f and securely fasten the two together, and thus provide a practicable head of proper size and form. If desired, the joint may also be soldered, and for the shaft I employ the tube d,

also of light thin metal,-to the ends of which the heads thus made are placed, so that they are centered by the recesses o, fitting on the ends of the tube, and fasten the heads and shaft together by the small light tube h, extending through the shaft and the holes of the heads and riveted or expanded at '5 outside of the heads, so as to make all fast. These joints and the joints of the ends of the shaft and recesses 0 may also be soldered, if desired. The concavo-convex disk forms the outer conical side of. the head and, together with the fiat disk for the inside, provides a head of like form and dimensions as the ordinary wood head, but much stronger without being'heavier, and it enables three or more holes to be made for the stud-pin of the spooling machine Without detriment to the strength, as in the case of the wood spool, which holes are advantageous because of balancing the spool to run better at high speed, and the greater number facilitates the application of the spool to the spooling-machine.

It is obvious that my improved quill or spool will not be affected by changes of the hygroscopic condition of the atmosphere, but will be much more lasting in use than the wood spools.

I claim as my invention 1. The improved metallic quill or spool having the heads made of the inner fiat centrally-perforated concentrically-recessed and outwardly-flanged disk, and the outer concavo-convex centrally-perforated disk fastened together by the said flange on the inner disk, and said heads attached to a metallic shaft, substantially as described.

2. The improved metallic quill or spool having the metallic tubular shaft centered at the ends in recesses of the metallic heads concentric with the central perforations of said heads and secured thereto by the smaller center tube extended through the shaft and heads and riveted or expanded in the outer extremities of the heads, substantially as described.

3. The improved metallic quill or spool having the heads made of the inner flat centrallyperforated concentrically-recessed and outwardly-flanged disk, and the outer concaveconvex perforated disk fastened together by the said flange of the inner disk'and attached to the metallic tubular shaft centered at the AUGUST oARLsTRoEM'. 

